Netapp virtual appliance

I was wondering if anyone could tell me if there is a open source (free app) that behaves like Netapp. I have a bunch of hard drives and trying to learn about NAS and SAN's. I figure if I could get something to simulate this then this will give me a great deal of Education.

I'm thinking you might be asking possibly for a Virtualization solution? Anyway, take a look at this article, it explains how to setup NFS on a linux computer with storage. NFS is great because it is free in Linux and you can mount storage for virtualization products such as VMWare and Xenserver which gives you the ability to run Virtual Machines off of an NFS share.

NetApp provides a "free" (will come back to that below) simulator which gives a 99% simulation of real NetApp devices (both singe node as well as cluster).
By 99% I mean that it does not cover all aspects (such as FC hardware devices) but it is indeed very useful.
It is available from http://now.netapp.com/NOW/cgi-bin/simulator on which you will also find the documentation.
Coming back to the "free" - you'll need to register on http://now.netapp.com in order to gain access to the simulator.
The simulator runs under Linux (the documentation guides you to Ubuntu and also explains how you can have a Linux VM running in VMware on a Windows computer) and you can use the "bunch of hard drives" for the simulator.

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